کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
259448 503635 2011 12 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Laboratory evaluation of a silicone foam sealant bonded to various header materials used in bridge expansion joints
موضوعات مرتبط
مهندسی و علوم پایه سایر رشته های مهندسی مهندسی عمران و سازه
پیش نمایش صفحه اول مقاله
Laboratory evaluation of a silicone foam sealant bonded to various header materials used in bridge expansion joints
چکیده انگلیسی

A silicone foam sealant was developed to provide an easy-to-use and economical joint sealant for small-movement bridge expansion joints. In studies reported previously, various laboratory tests were conducted to evaluate the performance of the sealant using concrete as the bonding substrate. In the present study, laboratory tests on the sealant were conducted using other substrates found in practice, including steel, asphalt, and polymer concrete. Some of the tests conducted included a tension test, repair test, oven-aged bonding test, salt water immersion test, and a cure (modulus over time) test that evaluated the mechanical properties of the sealant as it developed its final state of cure. Through the laboratory tests, it has been observed that the silicone foam has the ability to bond to various substrate materials and can easily accommodate deformation typical of small-movement expansion joints in bridges.


► A silicone foam sealant was developed to provide an easy-to-use and economical joint sealant for small-movement bridge expansion joints.
► Laboratory tests on the sealant were conducted using steel, asphalt, and polymer concrete substrates.
► Mechanical properties of the sealants were evaluated during or after various harsh, but realistic aging exposures.
► Silicone foam sealant was found to bond well to various substrate materials.
► Foam sealant can easily accommodate deformation typical of small-movement expansion joints in bridges.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Construction and Building Materials - Volume 25, Issue 11, November 2011, Pages 4132–4143
نویسندگان
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